217 lines
19 KiB
XML
217 lines
19 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.163.2003" ID-GBIF-Dataset="daef9891-760b-4f45-a77a-53459f6a2162" ID-PMC="PMC3253665" ID-Pensoft-Pub="1313-2970-163-13" ID-PubMed="22303128" ModsDocAuthor="" ModsDocDate="2012" ModsDocID="1313-2970-163-13" ModsDocOrigin="ZooKeys 163" ModsDocTitle="Commensal Leucothoidae (Crustacea, Amphipoda) of the Ryukyu Archipelago, Japan. Part I: ascidian-dwellers" checkinTime="1451249396492" checkinUser="pensoft" docAuthor="White, Kristine N. & Reimer, James Davis" docDate="2012" docId="D54528AE8109D410392E23A18CCCBD60" docLanguage="en" docName="ZooKeys 163: 13-55" docOrigin="ZooKeys 163" docSource="http://dx.doi.org/10.3897/zookeys.163.2003" docTitle="Leucothoe amamiensis White & Reimer, 2012, sp. n." docType="treatment" docVersion="4" lastPageNumber="20" masterDocId="FFFDB4372D483E07FFC5FF96FFDA8A34" masterDocTitle="Commensal Leucothoidae (Crustacea, Amphipoda) of the Ryukyu Archipelago, Japan. Part I: ascidian-dwellers" masterLastPageNumber="55" masterPageNumber="13" pageNumber="16" updateTime="1668153144330" updateUser="ExternalLinkService">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>Commensal Leucothoidae (Crustacea, Amphipoda) of the Ryukyu Archipelago, Japan. Part I: ascidian-dwellers</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>White, Kristine N.</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Reimer, James Davis</mods:namePart>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>ZooKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2012</mods:date>
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<mods:detail type="volume">
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<mods:number>163</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>13</mods:start>
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<mods:end>55</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/zookeys.163.2003</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.163.2003</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-163-13</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="152032978" LSID="urn:lsid:zoobank.org:act:33B0D200-A04A-4CA1-BFEA-5710AA382B05" httpUri="http://treatment.plazi.org/id/D54528AE8109D410392E23A18CCCBD60" lastPageId="7" lastPageNumber="20" pageId="3" pageNumber="16">
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<subSubSection pageId="3" pageNumber="16" type="nomenclature">
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<paragraph pageId="3" pageNumber="16">
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<taxonomicName LSID="urn:lsid:zoobank.org:act:33B0D200-A04A-4CA1-BFEA-5710AA382B05" class="Malacostraca" family="Leucothoidae" genus="Leucothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Leucothoe amamiensis" order="Amphipoda" pageId="3" pageNumber="16" phylum="Arthropoda" rank="species" species="amamiensis">
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<pageBreakToken pageId="3" pageNumber="16" start="start">Leucothoe</pageBreakToken>
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amamiensis
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</taxonomicName>
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<taxonomicNameLabel pageId="3" pageNumber="16">sp. n.</taxonomicNameLabel>
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Figs 34
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="16" type="type material">
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<paragraph pageId="3" pageNumber="16">Type material.</paragraph>
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<paragraph pageId="3" pageNumber="16">
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Holotype male, 5.9 mm, RUMF-ZC-1654, Sanakuiwa,
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<normalizedToken originalValue="Amami–oshima">Amami-oshima</normalizedToken>
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Island patch reef (
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<geoCoordinate direction="north" orientation="latitude" precision="15" value="28.116112">28°06'58"N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="15" value="129.36694">129°22'01"E</geoCoordinate>
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), in branchial chamber of solitary ascidians,
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<taxonomicName class="Ascidiacea" family="Pyuridae" genus="Pyura" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pyura microcosmus" order="Stolidobranchia" pageId="3" pageNumber="16" phylum="Chordata" rank="species" species="microcosmus">Pyura microcosmus</taxonomicName>
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(Savigny, 1816), 10 m, K.N. White, col., 19 March 2011 (KNWAmami2H). Paratype female, 4.7 mm, RUMF-ZC-1655, same station data as holotype.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="16" type="type locality">
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<paragraph pageId="3" pageNumber="16">Type locality.</paragraph>
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<paragraph pageId="3" pageNumber="16">
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Sanakuiwa,
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<normalizedToken originalValue="Amami–oshima">Amami-oshima</normalizedToken>
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Island, Japan (
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<geoCoordinate direction="north" orientation="latitude" precision="15" value="28.116112">28°06'58"N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="15" value="129.36694">129°22'01"E</geoCoordinate>
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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="16" type="additional material examined">
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<paragraph pageId="3" pageNumber="16">Additional material examined.</paragraph>
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<paragraph pageId="3" pageNumber="16">1 specimen, NSMT-Cr21813, KNWAmami2E; 3 specimens, RUMF-ZC-1656, KNWAmami2H; 10 specimens, RUMF-ZC-1657, KNWAmami3A; 33 specimens, NSMT-Cr21814, KNWAmami3C; 2 specimens, RUMF-ZC-1698, KNWAmami47J.</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="16" type="diagnosis (male)">
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<paragraph pageId="3" pageNumber="16">Diagnosis (male).</paragraph>
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<paragraph pageId="3" pageNumber="16">Mandibular palp article 2 with 17 setae. Right mandible lacinia mobilis with 2 distal rows of dentition. Coxae 1-4 with several short lateral facial setae. Gnathopod 1 coxa with 1 long medial facial seta. Gnathopod 2 basis anterior margin with 19 short and medium setae; carpus with large subdistal tooth; propodus mediofacial setal row displaced to palm. Epimeron 1 with anteroventral tuft of setae. Telson with plumose facial setae and simple marginal setae, apex truncate.</paragraph>
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</subSubSection>
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<subSubSection lastPageId="5" lastPageNumber="18" pageId="3" pageNumber="16" type="description (male)">
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<paragraph pageId="3" pageNumber="16">Description (male).</paragraph>
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<paragraph pageId="3" pageNumber="16">
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Head. Anterior margin rounded, anterodistal margin evenly rounded; ventral cephalic keel anterior margin excavate, anteroventral margin quadrate with a simple cusp, ventral margin oblique; eyes with more than 10 ommatidia, round. Antenna 1 0.3
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<normalizedToken originalValue="×">x</normalizedToken>
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body length, flagellum 8-articulate, peduncle article 1 width less than 2
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<normalizedToken originalValue="×">x</normalizedToken>
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article 2, accessory flagellum 1-articulate, aesthetascs present. Antenna 2 0.3
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<normalizedToken originalValue="×">x</normalizedToken>
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body length, slightly shorter than antenna 1, flagellum 3-articulate. Mandibular palp ratio of articles 1-3 1.0: 3.5: 1.5, article 2 with 17 setae, article 3 with 2 distal setae, incisors strongly dentate; left mandible with 14 raker spines, lacinia mobilis large, strongly toothed; right mandible with 15 raker spines, lacinia mobilis small, weakly dentate, with 2 rows of dentition. Upper lip asymmetrically lobate, anterior margin setose. Lower lip inner lobes fused, bare; outer lobes with moderate gape, anterior margins setose. Maxilla 1 palp 2-articulate with 3 distal slender setae; outer plate with 7 distal robust setae and 3 distal slender setae. Maxilla 2 inner plate with 2 robust and 7 slender distal setae, short row of facial setae; outer plate with 11 distal marginal setae, facial setae present. Maxilliped inner plates distal margin with v-shaped indentation, with short robust setae; outer plate inner margin smooth, reaching 0.3
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<normalizedToken originalValue="×">x</normalizedToken>
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palp article 1, with simple and setulate-serrate marginal setae, facial setae present; palp article 4 subequal in length with article 3, distally acute.
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</paragraph>
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<paragraph lastPageId="5" lastPageNumber="18" pageId="3" pageNumber="16">
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Pereon. Coxae 1-4 relative widths 1.0: 1.0: 0.7: 1.4. Gnathopod 1 coxa smooth, with tiny marginal setae, anterodistal margin produced, subquadrate, posterior margin excavate, medial and lateral facial setae present; basis distally expanded, anterior
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<pageBreakToken pageId="4" pageNumber="17" start="start">margin</pageBreakToken>
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with 18 setae, posterior margin bare; ischium with 1 posterodistal seta; carpus linear, length 9.1
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<normalizedToken originalValue="×">x</normalizedToken>
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width, proximal margin smooth, distal margin with 3 short setae; propodus straight, palm dentate with 6 proximal setae; dactylus smooth, reaching 0.3
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<normalizedToken originalValue="×">x</normalizedToken>
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propodus length. Gnathopod 2 coxa longer than broad, subequal in length with coxa
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<pageBreakToken pageId="5" pageNumber="18" start="start">3</pageBreakToken>
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, smooth, with tiny marginal setae, anterodistally rounded, distal margin straight, posterior margin straight, lateral facial setae present; basis distally expanded with 3 small anterior tubercles, anterior margin with 19 short and medium setae, posterior margin with 2 short setae; ischium with posterior, distal, and posterodistal setae; carpus 0.3
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<normalizedToken originalValue="×">x</normalizedToken>
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propodus length, curved, with large subdistal tooth, anterior margin smooth; propodus with 1 mediofacial setal row displaced to palm, reaching 0.8
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<normalizedToken originalValue="×">x</normalizedToken>
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propodus length, with 1 row of submarginal setae, posterior margin smooth, palm convex with 3 small and 1 major tubercle, indentation near distal end of dactylus; dactylus curved, proximal margin smooth with 1 seta, anterior margin distally subacute, reaching 0.6
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<normalizedToken originalValue="×">x</normalizedToken>
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propodus length. Pereopod 3 coxa length 1.8
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<normalizedToken originalValue="×">x</normalizedToken>
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width, anterodistal corner overriding distal face of coxa 2, extending below it, smooth, with tiny marginal setae, anterior margin straight, distal margin oblique, posterior margin straight, lateral facial setae present. Pereopod 4 coxa smooth, with tiny marginal setae, anterior margin tapered, distal margin produced, posterior margin excavate, lateral facial setae present. Pereopods 5-7 coxae facial setae present; bases width length ratios 1: 1.4, 1: 1.3, 1: 1.3, posterior margins smooth, setose.
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</paragraph>
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<paragraph pageId="5" pageNumber="18">
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Pleon. Epimeron 1 with tuft of anteroventral setae, epimera 2-3 with ventral setae; epimeron 3 posteroventral corner subquadrate, produced. Uropods 1-3 relative lengths 1.0: 0.9: 1.1. Uropod 1 peduncle and outer ramus subequal in length with inner ramus; inner ramus with 6 robust setae; outer ramus with 2 robust setae. Uropod 2 peduncle 0.8
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<normalizedToken originalValue="×">x</normalizedToken>
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inner ramus length; outer ramus 0.7
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<normalizedToken originalValue="×">x</normalizedToken>
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inner ramus length; inner ramus with 5 robust setae; outer ramus with 3 robust setae. Uropod 3 peduncle 1.1
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<normalizedToken originalValue="×">x</normalizedToken>
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inner ramus length; outer ramus subequal in length with inner ramus; inner and outer rami each with 3 robust setae. Telson 2.7
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<normalizedToken originalValue="×">x</normalizedToken>
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longer than wide, with plumose facial setae and simple marginal setae, apex truncate.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="5" pageNumber="18" type="female (sexually dimorphic characters)">
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<paragraph pageId="5" pageNumber="18">Female (sexually dimorphic characters).</paragraph>
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<paragraph pageId="5" pageNumber="18">Gnathopod 1 basis proximally expanded, anterior margin with 13 short setae, posterior margin with 16 short posterior setae; ischium with posterior seta; carpus distal margin with 4 short setae; propodus palm with 5 proximal setae. Gnathopod 2 basis without tubercles, anterior margin with 26 short and long setae, posterior margin with 12 short setae; ischium with 14 posterior setae, 3 anterior setae, and 2 posterodistal setae; carpus with small subdistal tooth; propodus palm with small tubercles.</paragraph>
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<caption pageId="5" pageNumber="18">
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<paragraph pageId="5" pageNumber="18">
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Figure 3.
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<taxonomicName class="Malacostraca" family="Leucothoidae" genus="Leucothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Leucothoe amamiensis" order="Amphipoda" pageId="5" pageNumber="18" phylum="Arthropoda" rank="species" species="amamiensis">Leucothoe amamiensis</taxonomicName>
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sp. n., holotype male, 5.9 mm, RUMF-ZC-1654.
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</paragraph>
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</caption>
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<caption pageId="5" pageNumber="18">
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<paragraph pageId="5" pageNumber="18">
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Figure 4.
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<taxonomicName class="Malacostraca" family="Leucothoidae" genus="Leucothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Leucothoe amamiensis" order="Amphipoda" pageId="5" pageNumber="18" phylum="Arthropoda" rank="species" species="amamiensis">Leucothoe amamiensis</taxonomicName>
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sp. n., holotype male, 5.9 mm, RUMF-ZC-1654; paratype female, 4.7 mm, RUMF-ZC-1655.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection pageId="5" pageNumber="18" type="etymology">
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<paragraph pageId="5" pageNumber="18">Etymology.</paragraph>
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<paragraph pageId="5" pageNumber="18">
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After
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<normalizedToken originalValue="‘Amami’">'Amami'</normalizedToken>
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and referring to the type locality of this species.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="5" pageNumber="18" type="ecology">
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<paragraph pageId="5" pageNumber="18">Ecology.</paragraph>
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<paragraph pageId="5" pageNumber="18">
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In branchial chamber of solitary ascidians,
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<taxonomicName class="Ascidiacea" family="Diazonidae" genus="Rhopalaea" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rhopalaea circula" order="Aplousobranchia" pageId="5" pageNumber="18" phylum="Chordata" rank="species" species="circula">Rhopalaea circula</taxonomicName>
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Monniot & Monniot, 2001 (Fig. 18F);
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<taxonomicName class="Ascidiacea" family="Pyuridae" genus="Pyura" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Pyura microcosmus" order="Stolidobranchia" pageId="5" pageNumber="18" phylum="Chordata" rank="species" species="microcosmus">Pyura microcosmus</taxonomicName>
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(Fig. 18D); and coral rubble.
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="6" lastPageNumber="19" pageId="5" pageNumber="18" type="relationships">
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<paragraph pageId="5" pageNumber="18">Relationships.</paragraph>
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<paragraph lastPageId="6" lastPageNumber="19" pageId="5" pageNumber="18">
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<taxonomicName class="Malacostraca" family="Leucothoidae" genus="Leucothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Leucothoe amamiensis" order="Amphipoda" pageId="5" pageNumber="18" phylum="Arthropoda" rank="species" species="amamiensis">Leucothoe amamiensis</taxonomicName>
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is similar to
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<taxonomicName class="Malacostraca" family="Leucothoidae" genus="Leucothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Leucothoe commensalis" order="Amphipoda" pageId="5" pageNumber="18" phylum="Arthropoda" rank="species" species="commensalis">Leucothoe commensalis</taxonomicName>
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Haswell, 1879,
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<taxonomicName class="Malacostraca" family="Leucothoidae" genus="Leucothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Leucothoe wuriti" order="Amphipoda" pageId="5" pageNumber="18" phylum="Arthropoda" rank="species" species="wuriti">Leucothoe wuriti</taxonomicName>
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Thomas and Klebba, 2007,
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<taxonomicName class="Malacostraca" family="Leucothoidae" genus="Leucothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Leucothoe epidemos" order="Amphipoda" pageId="5" pageNumber="18" phylum="Arthropoda" rank="species" species="epidemos">Leucothoe epidemos</taxonomicName>
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White and Thomas, 2009, and
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<taxonomicName class="Malacostraca" family="Leucothoidae" genus="Leucothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Leucothoe thula" order="Amphipoda" pageId="5" pageNumber="18" phylum="Arthropoda" rank="species" species="thula">Leucothoe thula</taxonomicName>
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White and Thomas, 2009 in having a rounded head, single seta on the medial surface of coxa 1, a long gnathopod 1 dactylus, and a displaced gnathopod 2 mediofacial setal row. It is similar to
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<taxonomicName class="Malacostraca" family="Leucothoidae" genus="Leucothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Leucothoe articulosa" order="Amphipoda" pageId="5" pageNumber="18" phylum="Arthropoda" rank="species" species="articulosa">Leucothoe articulosa</taxonomicName>
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Montagu, 1804,
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<taxonomicName class="Malacostraca" family="Leucothoidae" genus="Leucothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Leucothoe incisa" order="Amphipoda" pageId="5" pageNumber="18" phylum="Arthropoda" rank="species" species="incisa">Leucothoe incisa</taxonomicName>
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(Robertson, 1893), and
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<taxonomicName class="Malacostraca" family="Leucothoidae" genus="Leucothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Leucothoe procera" order="Amphipoda" pageId="5" pageNumber="18" phylum="Arthropoda" rank="species" species="procera">Leucothoe procera</taxonomicName>
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(Bate, 1857) in having gnathopod 2 carpus with a large subapical tooth.
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<taxonomicName class="Malacostraca" family="Leucothoidae" genus="Leucothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Leucothoe amamiensis" order="Amphipoda" pageId="5" pageNumber="18" phylum="Arthropoda" rank="species" species="amamiensis">Leucothoe amamiensis</taxonomicName>
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is similar to
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<taxonomicName class="Malacostraca" family="Leucothoidae" genus="Leucothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Leucothoe occulta" order="Amphipoda" pageId="5" pageNumber="18" phylum="Arthropoda" rank="species" species="occulta">Leucothoe occulta</taxonomicName>
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Krapp-Schickel, 1975 in having coxae with facial setae.
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<taxonomicName class="Malacostraca" family="Leucothoidae" genus="Leucothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Leucothoe amamiensis" order="Amphipoda" pageId="6" pageNumber="19" phylum="Arthropoda" rank="species" species="amamiensis">
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<pageBreakToken pageId="6" pageNumber="19" start="start">Leucothoe</pageBreakToken>
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amamiensis
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</taxonomicName>
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differs from these species in having two rows of dentition on the right mandibular lacinia mobilis, a heavily setose gnathopod 2 basis, and a telson with plumose facial setae and simple marginal setae, and truncate apex.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="7" pageNumber="20" type="remarks">
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<paragraph pageId="7" pageNumber="20">
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<pageBreakToken pageId="7" pageNumber="20" start="start">Remarks</pageBreakToken>
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.
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</paragraph>
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<paragraph pageId="7" pageNumber="20">
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<taxonomicName class="Malacostraca" family="Leucothoidae" genus="Leucothoe" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Leucothoe amamiensis" order="Amphipoda" pageId="7" pageNumber="20" phylum="Arthropoda" rank="species" species="amamiensis">Leucothoe amamiensis</taxonomicName>
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has a pink-orange striped color pattern (Fig. 17B). This species appears to be endemic to
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<normalizedToken originalValue="Amami–oshima">Amami-oshima</normalizedToken>
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Island.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="7" pageNumber="20" type="distribution">
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<paragraph pageId="7" pageNumber="20">Distribution.</paragraph>
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<paragraph pageId="7" pageNumber="20">
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East China Sea:
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<normalizedToken originalValue="Amami–oshima">Amami-oshima</normalizedToken>
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Island, Kagoshima, Japan.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |